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MMC highlights for 3.9:

Browse source 
Core:
  - Support for packed commands in eMMC 4.5.  (This requires a host
    capability to be turned on.  It increases write throughput by 20%+,
    but may also increase average write latency; more testing needed.)
  - Add DT bindings for capability flags.
  - Add mmc_of_parse() for shared DT parsing between drivers.
 
 Drivers:
  - android-goldfish: New MMC driver for the Android Goldfish emulator.
  - mvsdio: Add DT bindings, pinctrl, use slot-gpio for card detection.
  - omap_hsmmc: Fix boot hangs with RPMB partitions.
  - sdhci-bcm2835: New driver for controller used by Raspberry Pi.
  - sdhci-esdhc-imx: Add 8-bit data, auto CMD23 support, use slot-gpio.
  - sh_mmcif: Add support for eMMC DDR, bundled MMCIF IRQs.
  - tmio_mmc: Add DT bindings, support for vccq regulator.
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Merge tag 'mmc-updates-for-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC update from Chris Ball:
 "MMC highlights for 3.9:

  Core:
   - Support for packed commands in eMMC 4.5.  (This requires a host
     capability to be turned on.  It increases write throughput by 20%+,
     but may also increase average write latency; more testing needed.)
   - Add DT bindings for capability flags.
   - Add mmc_of_parse() for shared DT parsing between drivers.

  Drivers:
   - android-goldfish: New MMC driver for the Android Goldfish emulator.
   - mvsdio: Add DT bindings, pinctrl, use slot-gpio for card detection.
   - omap_hsmmc: Fix boot hangs with RPMB partitions.
   - sdhci-bcm2835: New driver for controller used by Raspberry Pi.
   - sdhci-esdhc-imx: Add 8-bit data, auto CMD23 support, use slot-gpio.
   - sh_mmcif: Add support for eMMC DDR, bundled MMCIF IRQs.
   - tmio_mmc: Add DT bindings, support for vccq regulator"

* tag 'mmc-updates-for-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (92 commits)
  mmc: tegra: assume CONFIG_OF, remove platform data
  mmc: add DT bindings for more MMC capability flags
  mmc: tmio: add support for the VccQ regulator
  mmc: tmio: remove unused and deprecated symbols
  mmc: sh_mobile_sdhi: use managed resource allocations
  mmc: sh_mobile_sdhi: remove unused .pdata field
  mmc: tmio-mmc: parse device-tree bindings
  mmc: tmio-mmc: define device-tree bindings
  mmc: sh_mmcif: use mmc_of_parse() to parse standard MMC DT bindings
  mmc: (cosmetic) remove "extern" from function declarations
  mmc: provide a standard MMC device-tree binding parser centrally
  mmc: detailed definition of CD and WP MMC line polarities in DT
  mmc: sdhi, tmio: only check flags in tmio-mmc driver proper
  mmc: sdhci: Fix parameter of sdhci_do_start_signal_voltage_switch()
  mmc: sdhci: check voltage range only on regulators aware of voltage value
  mmc: bcm2835: set SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
  mmc: support packed write command for eMMC4.5 devices
  mmc: add packed command feature of eMMC4.5
  mmc: rtsx: remove driving adjustment
  mmc: use regulator_can_change_voltage() instead of regulator_count_voltages
  ...
This commit is contained in:
Linus Torvalds 2013-02-26 09:31:09 -08:00
commit ed5dc2372d
53 changed files with 3064 additions and 882 deletions
Download patch file Download diff file Expand all files Collapse all files

18
include/linux/mfd/tmio.h
View file

@ -64,12 +64,6 @@
* Some controllers can support SDIO IRQ signalling.
*/
#define TMIO_MMC_SDIO_IRQ (1 << 2)
/*
* Some platforms can detect card insertion events with controller powered
* down, using a GPIO IRQ, in which case they have to fill in cd_irq, cd_gpio,
* and cd_flags fields of struct tmio_mmc_data.
*/
#define TMIO_MMC_HAS_COLD_CD (1 << 3)
/*
* Some controllers require waiting for the SD bus to become
* idle before writing to some registers.
@ -116,18 +110,6 @@ struct tmio_mmc_data {
void (*clk_disable)(struct platform_device *pdev);
};
/*
* This function is deprecated and will be removed soon. Please, convert your
* platform to use drivers/mmc/core/cd-gpio.c
*/
#include <linux/mmc/host.h>
static inline void tmio_mmc_cd_wakeup(struct tmio_mmc_data *pdata)
{
if (pdata)
mmc_detect_change(dev_get_drvdata(pdata->dev),
msecs_to_jiffies(100));
}
/*
* data for the NAND controller
*/

22
include/linux/mmc/card.h
View file

@ -53,6 +53,9 @@ struct mmc_ext_csd {
u8 part_config;
u8 cache_ctrl;
u8 rst_n_function;
u8 max_packed_writes;
u8 max_packed_reads;
u8 packed_event_en;
unsigned int part_time; /* Units: ms */
unsigned int sa_timeout; /* Units: 100ns */
unsigned int generic_cmd6_time; /* Units: 10ms */
@ -83,7 +86,7 @@ struct mmc_ext_csd {
unsigned int data_tag_unit_size; /* DATA TAG UNIT size */
unsigned int boot_ro_lock; /* ro lock support */
bool boot_ro_lockable;
u8 raw_exception_status; /* 53 */
u8 raw_exception_status; /* 54 */
u8 raw_partition_support; /* 160 */
u8 raw_rpmb_size_mult; /* 168 */
u8 raw_erased_mem_count; /* 181 */
@ -187,6 +190,18 @@ struct sdio_func_tuple;
#define SDIO_MAX_FUNCS 7
enum mmc_blk_status {
MMC_BLK_SUCCESS = 0,
MMC_BLK_PARTIAL,
MMC_BLK_CMD_ERR,
MMC_BLK_RETRY,
MMC_BLK_ABORT,
MMC_BLK_DATA_ERR,
MMC_BLK_ECC_ERR,
MMC_BLK_NOMEDIUM,
MMC_BLK_NEW_REQUEST,
};
/* The number of MMC physical partitions. These consist of:
* boot partitions (2), general purpose partitions (4) in MMC v4.4.
*/
@ -295,6 +310,11 @@ static inline void mmc_part_add(struct mmc_card *card, unsigned int size,
card->nr_parts++;
}
static inline bool mmc_large_sector(struct mmc_card *card)
{
return card->ext_csd.data_sector_size == 4096;
}
/*
* The world is not perfect and supplies us with broken mmc/sdio devices.
* For at least some of these bugs we need a work-around.

7
include/linux/mmc/core.h
View file

@ -18,6 +18,9 @@ struct mmc_request;
struct mmc_command {
u32 opcode;
u32 arg;
#define MMC_CMD23_ARG_REL_WR (1 << 31)
#define MMC_CMD23_ARG_PACKED ((0 << 31) | (1 << 30))
#define MMC_CMD23_ARG_TAG_REQ (1 << 29)
u32 resp[4];
unsigned int flags; /* expected response type */
#define MMC_RSP_PRESENT (1 << 0)
@ -120,6 +123,7 @@ struct mmc_data {
s32 host_cookie; /* host private data */
};
struct mmc_host;
struct mmc_request {
struct mmc_command *sbc; /* SET_BLOCK_COUNT for multiblock */
struct mmc_command *cmd;
@ -128,9 +132,9 @@ struct mmc_request {
struct completion completion;
void (*done)(struct mmc_request *);/* completion function */
struct mmc_host *host;
};
struct mmc_host;
struct mmc_card;
struct mmc_async_req;
@ -147,6 +151,7 @@ extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool);
extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
extern int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd);
#define MMC_ERASE_ARG 0x00000000
#define MMC_SECURE_ERASE_ARG 0x80000000

6
include/linux/mmc/dw_mmc.h
View file

@ -209,8 +209,10 @@ struct dw_mci_dma_ops {
#define DW_MCI_QUIRK_HIGHSPEED BIT(2)
/* Unreliable card detection */
#define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3)
/* Write Protect detection not available */
#define DW_MCI_QUIRK_NO_WRITE_PROTECT BIT(4)
/* Slot level quirks */
/* This slot has no write protect */
#define DW_MCI_SLOT_QUIRK_NO_WRITE_PROTECT BIT(0)
struct dma_pdata;

61
include/linux/mmc/host.h
View file

@ -131,9 +131,11 @@ struct mmc_host_ops {
int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios);
/* Check if the card is pulling dat[0:3] low */
int (*card_busy)(struct mmc_host *host);
/* The tuning command opcode value is different for SD and eMMC cards */
int (*execute_tuning)(struct mmc_host *host, u32 opcode);
void (*enable_preset_value)(struct mmc_host *host, bool enable);
int (*select_drive_strength)(unsigned int max_dtr, int host_drv, int card_drv);
void (*hw_reset)(struct mmc_host *host);
void (*card_event)(struct mmc_host *host);
@ -170,6 +172,22 @@ struct mmc_slot {
void *handler_priv;
};
/**
* mmc_context_info - synchronization details for mmc context
* @is_done_rcv wake up reason was done request
* @is_new_req wake up reason was new request
* @is_waiting_last_req mmc context waiting for single running request
* @wait wait queue
* @lock lock to protect data fields
*/
struct mmc_context_info {
bool is_done_rcv;
bool is_new_req;
bool is_waiting_last_req;
wait_queue_head_t wait;
spinlock_t lock;
};
struct regulator;
struct mmc_supply {
@ -258,6 +276,10 @@ struct mmc_host {
#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */
#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10) /* Card-detect signal active high */
#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11) /* Write-protect signal active high */
#define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */
#define MMC_CAP2_PACKED_WR (1 << 13) /* Allow packed write */
#define MMC_CAP2_PACKED_CMD (MMC_CAP2_PACKED_RD | \
MMC_CAP2_PACKED_WR)
mmc_pm_flag_t pm_caps; /* supported pm features */
@ -331,6 +353,7 @@ struct mmc_host {
struct dentry *debugfs_root;
struct mmc_async_req *areq; /* active async req */
struct mmc_context_info context_info; /* async synchronization info */
#ifdef CONFIG_FAIL_MMC_REQUEST
struct fault_attr fail_mmc_request;
@ -341,10 +364,11 @@ struct mmc_host {
unsigned long private[0] ____cacheline_aligned;
};
extern struct mmc_host *mmc_alloc_host(int extra, struct device *);
extern int mmc_add_host(struct mmc_host *);
extern void mmc_remove_host(struct mmc_host *);
extern void mmc_free_host(struct mmc_host *);
struct mmc_host *mmc_alloc_host(int extra, struct device *);
int mmc_add_host(struct mmc_host *);
void mmc_remove_host(struct mmc_host *);
void mmc_free_host(struct mmc_host *);
void mmc_of_parse(struct mmc_host *host);
static inline void *mmc_priv(struct mmc_host *host)
{
@ -357,16 +381,16 @@ static inline void *mmc_priv(struct mmc_host *host)
#define mmc_classdev(x) (&(x)->class_dev)
#define mmc_hostname(x) (dev_name(&(x)->class_dev))
extern int mmc_suspend_host(struct mmc_host *);
extern int mmc_resume_host(struct mmc_host *);
int mmc_suspend_host(struct mmc_host *);
int mmc_resume_host(struct mmc_host *);
extern int mmc_power_save_host(struct mmc_host *host);
extern int mmc_power_restore_host(struct mmc_host *host);
int mmc_power_save_host(struct mmc_host *host);
int mmc_power_restore_host(struct mmc_host *host);
extern void mmc_detect_change(struct mmc_host *, unsigned long delay);
extern void mmc_request_done(struct mmc_host *, struct mmc_request *);
void mmc_detect_change(struct mmc_host *, unsigned long delay);
void mmc_request_done(struct mmc_host *, struct mmc_request *);
extern int mmc_cache_ctrl(struct mmc_host *, u8);
int mmc_cache_ctrl(struct mmc_host *, u8);
static inline void mmc_signal_sdio_irq(struct mmc_host *host)
{
@ -434,6 +458,19 @@ static inline int mmc_boot_partition_access(struct mmc_host *host)
return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);
}
static inline int mmc_host_uhs(struct mmc_host *host)
{
return host->caps &
(MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 |
MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 |
MMC_CAP_UHS_DDR50);
}
static inline int mmc_host_packed_wr(struct mmc_host *host)
{
return host->caps2 & MMC_CAP2_PACKED_WR;
}
#ifdef CONFIG_MMC_CLKGATE
void mmc_host_clk_hold(struct mmc_host *host);
void mmc_host_clk_release(struct mmc_host *host);

15
include/linux/mmc/mmc.h
View file

@ -139,7 +139,7 @@ static inline bool mmc_op_multi(u32 opcode)
#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */
#define R1_READY_FOR_DATA (1 << 8) /* sx, a */
#define R1_SWITCH_ERROR (1 << 7) /* sx, c */
#define R1_EXCEPTION_EVENT (1 << 6) /* sx, a */
#define R1_EXCEPTION_EVENT (1 << 6) /* sr, a */
#define R1_APP_CMD (1 << 5) /* sr, c */
#define R1_STATE_IDLE 0
@ -275,7 +275,10 @@ struct _mmc_csd {
#define EXT_CSD_FLUSH_CACHE 32 /* W */
#define EXT_CSD_CACHE_CTRL 33 /* R/W */
#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */
#define EXT_CSD_EXP_EVENTS_STATUS 54 /* RO */
#define EXT_CSD_PACKED_FAILURE_INDEX 35 /* RO */
#define EXT_CSD_PACKED_CMD_STATUS 36 /* RO */
#define EXT_CSD_EXP_EVENTS_STATUS 54 /* RO, 2 bytes */
#define EXT_CSD_EXP_EVENTS_CTRL 56 /* R/W, 2 bytes */
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */
@ -324,6 +327,8 @@ struct _mmc_csd {
#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */
#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */
#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */
#define EXT_CSD_MAX_PACKED_WRITES 500 /* RO */
#define EXT_CSD_MAX_PACKED_READS 501 /* RO */
#define EXT_CSD_BKOPS_SUPPORT 502 /* RO */
#define EXT_CSD_HPI_FEATURES 503 /* RO */
@ -385,6 +390,9 @@ struct _mmc_csd {
#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */
#define EXT_CSD_PWR_CL_8BIT_SHIFT 4
#define EXT_CSD_PWR_CL_4BIT_SHIFT 0
#define EXT_CSD_PACKED_EVENT_EN BIT(3)
/*
* EXCEPTION_EVENT_STATUS field
*/
@ -393,6 +401,9 @@ struct _mmc_csd {
#define EXT_CSD_SYSPOOL_EXHAUSTED BIT(2)
#define EXT_CSD_PACKED_FAILURE BIT(3)
#define EXT_CSD_PACKED_GENERIC_ERROR BIT(0)
#define EXT_CSD_PACKED_INDEXED_ERROR BIT(1)
/*
* BKOPS status level
*/

1
include/linux/mmc/sdhci.h
View file

@ -94,6 +94,7 @@ struct sdhci_host {
#define SDHCI_QUIRK2_HOST_NO_CMD23 (1<<1)
/* The system physically doesn't support 1.8v, even if the host does */
#define SDHCI_QUIRK2_NO_1_8_V (1<<2)
#define SDHCI_QUIRK2_PRESET_VALUE_BROKEN (1<<3)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */

2
include/linux/mmc/sh_mobile_sdhi.h
View file

@ -4,7 +4,6 @@
#include <linux/types.h>
struct platform_device;
struct tmio_mmc_data;
#define SH_MOBILE_SDHI_IRQ_CARD_DETECT "card_detect"
#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard"
@ -26,7 +25,6 @@ struct sh_mobile_sdhi_info {
unsigned long tmio_caps2;
u32 tmio_ocr_mask; /* available MMC voltages */
unsigned int cd_gpio;
struct tmio_mmc_data *pdata;
void (*set_pwr)(struct platform_device *pdev, int state);
int (*get_cd)(struct platform_device *pdev);

1
include/linux/platform_data/mmc-esdhc-imx.h
View file

@ -39,5 +39,6 @@ struct esdhc_platform_data {
unsigned int cd_gpio;
enum wp_types wp_type;
enum cd_types cd_type;
int max_bus_width;
};
#endif /* __ASM_ARCH_IMX_ESDHC_H */

28
include/linux/platform_data/mmc-sdhci-tegra.h
View file

@ -1,28 +0,0 @@
/*
* Copyright (C) 2009 Palm, Inc.
* Author: Yvonne Yip <y@palm.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __PLATFORM_DATA_TEGRA_SDHCI_H
#define __PLATFORM_DATA_TEGRA_SDHCI_H
#include <linux/mmc/host.h>
struct tegra_sdhci_platform_data {
int cd_gpio;
int wp_gpio;
int power_gpio;
int is_8bit;
int pm_flags;
};
#endif